So, a lot of new followers. Welcome! I mostly use this space to nerd out a bunch about ancient history, military history, or both. I also have a blog where I do mostly that thing, but more so: https://acoup.blog/ I also occasionally opine on geopolitics/nat-sec Cheers!
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...and J. Keegan, The Face of Battle (1976). For archer cavalry, T. May, The Mongol Art of War (2017). You will find that there is some reliance on knowledge about the behavior of horses and on equestrian survivals of military drills (e.g. sport horse archery, tent-pegging)...
... That kind of knowledge is valuable, but it is not the only, or even the most important, sort of knowledge being used.